makeText Sprite error in three.js

I am getting error while adding text in the sprite,how can i over come this error, thanks in advance.

var spritey = makeTextSprite( " Hello, ", 
         { fontsize: 24, borderColor: {r:255, g:0, b:0, a:1.0}, backgroundColor: {r:255, g:100, b:100, a:0.8} } );
spritey.position.set(-85,105,55);
scene.add( spritey );

via Chebli Mohamed